ASTROSAT CZTI

Data Quality Report

Orbit 23567

Creation date: 2024-06-27T18:56:13.893170
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A07_011T01_9000003482_23567cztM0_level2.evt modeM0/AS1A07_011T01_9000003482_23567cztM0_level2_quad_clean.evt
Size (bytes)444,476,16092,232,000
Size423.9 MB 88.0 MB
Events in quadrant A2,979,307597,967
Events in quadrant B3,371,061607,582
Events in quadrant C3,042,814580,545
Events in quadrant D3,640,683568,380

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127741
B0138441
C0129771
D0151561

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6284470.747931%
B62851121.782021%
C6285631.002387%
D6285681.081941%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7289 6284 0 0 0.00% 0.00%
B 7290 6286 49 49 0.67% 0.78%
C 7290 6286 0 0 0.00% 0.00%
D 7290 6286 31 31 0.43% 0.49%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 254 10797 64.96 772 757 154.6
A 0 226 6719 38.58 772 757 154.6
A 3 137 6463 36.92 772 757 154.6
B 0 189 255880 1769.92 760 740 144.2
B 0 230 34381 233.37 760 740 144.2
B 15 33 33237 225.43 760 740 144.2
C 14 238 118107 696.54 727 732 168.5
C 0 239 51772 302.89 727 732 168.5
C 3 233 16360 92.74 727 732 168.5
D 9 85 587134 3239.28 743 722 181.0
D 7 38 125292 688.11 743 722 181.0
D 12 233 43655 237.16 743 722 181.0

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter